Rebates aren't the sexiest freebies (that distinction belongs to Depends), but it's not every day you see a full-size free Eight O'Clock ground coffee offer. The rebate form is pretty standard and you have until the end of the year to send yours in.
The fine print mentions they'll “only honor the first 12,000 submissions,” so be sure to get yours in sooner rather than later. I highly doubt they're anywhere close to 12k submissions yet because, come on, this is America. Filling out forms on time and paying attention to detail aren't our strongest skills.